chryst



Feb. 27, 1923.

W. A. CHRYST IGNToN SYSTEM 5 sheets-Sheet Filed NOV. l, 'i920 f /l i 2.PU 9, ma@ MH L, QW 2 QJ 1... la 2 .nu e .F

W. A. CHRYST mmvoN SYSTEM 5 sheets-sheet IS Filed Nov. la, 1920 7,En/mii?? Patented Feb. 2?, i923.

WILLIAM A.` CHRYST, OF DAYTGN, OHIO, ASSIGNR TG THE DAYTQN ENGINEERINGLABORATORIES COMPANY, GF DAYTON, OHIO,` A. CORFORATON GF OHO.

T o all whomy t 'may con/cern:

Bc it known that` I. Willman nnmrs'r. a citizen of the wUnited Statesot'merica. residing at Dayton, county of lelontgomcry, and State of Ohio.have invented certain new and useful Improvements in Ignition Systems,of which thel following is a full, clear, and exact description. l

`This invention relates to ignition systems for providing ignition foran interindcombustion engine and a. i'uel burner asso-k -ciated wlthsaid engine tor heating the 1norder and ttor an engine heating burnerconnected thereto.

'Further objects of the present invention will be apparentfrom thefollowing descrip tion. reference being had to the accompanyingdrawings, wherein preferred embodiments of the present invention areclearlj shown.

Int-he drawings:

'Fig l is a diagrammatic plan vien' oi an engine and circuit diagram ofan ignition s vstem embodying the invention.

Fig. 2 is a top plan view ot' the ignition unit. the right hand ot thecover plate being shown cut away to clearly illustrate the. distributorterminals.

Fig. 3 is a sectional view taken alongthe line 3 3 of Fig. 2.

Figl is atop plan view ot the ignition unit with the distributor Iandrotorelcments removed. Y

Fig. 5 is a sectional view taken along line 5-5 ofFig. 3.

Fig. G is a' plan View of the rotor element of the distributor.

Referring to the drawings, the internalthe - combustion e Tine 2O shownin llie'. l includes'two 'rows 0In cylinders arranged in convergmgrelation7 the :tiring order being vshown by numbers l to 8. Thecarburetor 21 is connected to the fuel burner 22 by .Application ledNovember 18, Serial No. 424,835.

in the eopending application of lWilliam A.

thryst.. Serial No. 367,630 filed March 22, 1920. being provided with aspark plug 25 which. connected to the burner ignition apparatus to bedescribed.

2G designates as a whole Aan ignition unit including apparatus for bothengines and lau-ner ignition. The unit 2G may be supported by the engine2O in any suitablema-nner. and comprises a housing 27 for enclosing thedriving mechanism and certain elements of the ignition system. Thehousing 2T terminates at its upper end in a timer cup 2H upon which issupported a distrib utor head 29 made ot any suitable insulatingmaterial and which includes a series ofterminals 30 'marked l, et, 7..2. 5, 8, 3, 6, electrically connected to correspondingly markedcylinders ot engine 2O for transmitting the sparking impulses to theengine asv will be described hereinafter.

The distributor head 2%) is provided with a central terminal 3l whichcooperates with one contact button 32 of the rotor 33 (see Fig. todistri'lnite sparking impulses to the engine. The other terminal 34 ofthe head 2S) is connected with circular track. 35., embedded in theinner face of the distributor head, said track in turn being inelectrical connection with button 36 by means ot' rubbing brush 37 andmetal strip 38. These two rotor buttons 32 and 36 are adapted to directthe sparking impulses to the engine. cylinders in alternate. recurrentsequence. The rotor 33 is mounted upon a shouldered shank portion 39 ofthe timer cam 40. This cam is carried `by the Shaft 4l journaled in thebearing 42 supported by housing 27. lust below this bearin 42 andsupported by said housing are t ree condenser units 43, 43, 43" (shownin Fig. 5) adapted to cooperate with the interrupters describedhereinafter.

The timer-cam 40 carried by the shaft 41. cmmerates with breaker levers4M: andi 45 which a re arranged with respect to the timer cam in such a.manner as to be alternately 'tperated its described and claimed in thecopending 261,945 led Nov. 11, 19187 the angle between the linesjoining, the cam axis with the pivots of theselevers 44 and45 is equalto 186 f where V is equal to the angle bedegrees and the number of cernlobes equals four. This angle l18O" will be referred to .es the anglebetween levers and 45, and, in the present example, this angle is 150degreesn Thesebreairer levers are supported within the timer cup '28 andinsulated therefrom in. any'sillbl@ mener Qnnttrmnts and 47 arecarried'by the levers 4A andvli respectively and are adapted tocooperate With stationary contacts-48 and 49 respectively` The leversall and 45 are provided with rubbingblocks or riders 50 and -51respectively, which ere adapted to engage with the faces of cam theoperation of which tends to manipulate the levers and to open and closethe Contact points and 48, and 47 and 49' in recurrent sequence.

v 'lhese rubbingllfbloeks 5G and 51, orrriders,

are held in engagement with cem 40 by means of springs 52 and 53connected to insuleted terminal posts 54 and 55 respective l ly. Thesprings 52 and 53 are adapted to actas electrical conductors between themov'- able contact levers 44: and 415 and insulated terminal posts 54and |55 respectively. These posts 54 and 55 are connected to one side otthe condenscrs 43 and 48, the other side of said condensers 'beinggrounded as at 56.l

45 mounted upon-brackets 57 andli respective- Ststionary contact points48 'and are ly, .these standards being grounded on the ign'itlounitframe. Y j

'A t ird interrupter device is provided', includin suitable manner. Saidbreaker lever 59 carsurface adapted to engage with the cern e() wherebysaid'lever ma be opereted by said cam. This rubbing b levers 44: and 45respectively, for purposes to be detaiiedly described hereinafter.

The lever 59 carries a contact point 61A `en ine of .the'60 de ee i? t 1e w'll e breaker lever 59 supported by g gr 5p l but insu ated from thetimer cup' 28 in any och: 60 is of Greater Widthltban the rubbingblocks50 and 51 of to the engine and fuel burner.

engagement with also acting as an electrical conductor between the lever59 andterminal post. 65. One end of condenser 43h is connected to thepost while the other end is grounded as lt f By referring to Fig. 1 itmay be seen that the terminal post 51 is connected to one en d et' theprimary winding 66 of ignition coil 6T' whilethe other'end ot saidprimary winding is connected -to a switch 68 by means or lead wire 69..lheswitch 68 in turn 1s adapt ed to connect said primary `vnding tothev storage battery 70.

The terminal post 55 is connected to om` end of the primary winding 71of coil 75"', while the other end of said winding is con nected to thesia-'itch 68 by means' of'lead wi1e73.

Ignition coil 67 is provided with a sec ondary winding 74 in electricalconnection with the rotor button 32 by means of lea-d wire 75 andterminal 31 while secondary winding 76 of coil 72 is 'connected'to rotorbutton 36 by lead Wire 77 and terminal 34. Thce rotor buttons 32 and 36are so ar ranged as to distribute the sparking im.

pulses of their respective ignition coils to the Cain 40, said spring'-the various cylinders of the engine 20 in the axes of these buttons isequal to 180- (360 y where N ecluals the number of 'cylinders and Vequals t e engle between the rows of cylinders.. y and 36V thereforevequals 180-' levers and distributor buttons arranged in this manner,ignition foren eight cylinder.

e rovided. Such an engine has asymmetriclly 'arranged ring intervals-of60 degrees, 120 Y degrees,l alternately, referring to crank shaftrotation. As has been mentioned'heretofore The anglebetween thesebuttons 32 'the cam 40 is adapted to operatelthe breaker levers of theinterrupters carried by the 'timer cup 28, to ,provide sparkingRimpulseseferring A teilig. 1, the contacts 427 and 49 are shown iii-engagement,therebyA permitting current to flow from the battery 70 across switch68, lead wire 73, primary windin' 71, terminal post 55, spring conductor53, ever arm 4:5', across contacts e7 and49 and-back to the battery viaground .connections 56,A As soon as themam e0 rotates enough toblfenlfitbe a fuel burner for heating the intake manie gine operateddistributor,

fold thereof; of a source of current supply/5 apparatus, iiieludinseparate induction means and timing evices, for providing sparkingimpulses for the engine ignition and burner ignition, said engineignition timing device permitting a'euirent (low oi longer duration thanthe burner ignition timin device whereby the engine ignition impu sewill be ot' greater intensity than the burner ignitidn impulse; and acommon enfor directing the engine and burner ignition impulses vto theirrespective sparking devices.

6. In an ignition system, the combination with an engine )rovided with`a fuel burner for heating the intake manii'old thereof; oi a source ot'current supply; ignition apparatus including induction means and anignition unit having circuit interrupt/ers, lo. cated in the sainepiane, for bot-h engine and burner ignition; a common cam for operatingsaid interrupters; and cam riders associated with both the engine andburner ignition interrupters, thc rider of the burner interruptor havinga wider earn riding surface than the engine interi-opter whereby saidburner intei'riipter will be held open for a longer period than theengine interrupter to reduce the intensity of the sparking iinpulses ofthe burner ignition relative to the engine ignition.

7. In an ignition system, thecoinoination with a multi-cylinder enginehaving nonsymmetrical firing order and provided with a fuel burner forheating the intake' inanifold; of a source of current supply; ignition aparatus including induction devices and -eireuit interrupt/ers forproviding sparking Maanen impulsesin non-symmetrical order for 'theengine and sparking ,impulses for the burner; ineans`or operating saidinterruptere; means associated with said iiiterriipters whereby theengine ignition interriil'iters wiii 'be maintained in circuit closingposi# tion for a longer time interval than the burner ignitioninterruptor-s for providing the engine ignitinn with a spark of greaterintensity than the burner means for distributing three sparkingiinpulses to their respective sparking devices.

8. n an ignition system, the combination with a multi-cylinder enginehaving nonsyinmetrical tiring order andprovided with a Vt'iiel burnerfor heating the intake inaniold g ,of a source oi current supply;ignition apparatus including induction devices and circuit interruptersfor providing sparking impulses in non-symmetrical firing order for theengine and the burner; awinmon eainming element for operating saidinterrupters; means associated with said interrupt/ers whereby theengine ignition interriipters will 'be main'- tained in circuit closingosition for la longer time interval than t e burner igni-y tioninterrupters for providing the engine ignition with a spark of greaterintensitji,1 t an' the burner ignition; and means tor diatrihuting thesesparking impulses to their reslpective sparking devices.

n testimony whereof l hereto affix my signature.

W ILLM' A. GHRYT.

Witnesses C, DALE Minnen,y H. E. SOLLENBERGEB.

ignition; and

sparking impulsen for 50

